MESON Chess Problem Database

Problem Display
PID: 269912 (5N2/1b2pB2/1pP4R/1kp1R2K/1P6/8/P7/3QB3 w - - 0 1)

Syatov, G

Shakhmatnaya kompozitsiya, 1997

5N2/1b2pB2/1pP4R/1kp1R2K/1P6/8/P7/3QB3

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Ka6
      • 2.Qa4#
    • 1...Ba6
      • 2.a4#
  • Tries
    • 1.Bg6?
      • threat
        • 2.Bd3#
      • 1...Kc4
        • 2.Qd3#
      • 1...Ka6
        • 2.Qa4#
      • 1...Kxc6
        • 2.Qd7#
      • 1...e6!
    • 1.Rxc5+?
      • 1...Ka6
        • 2.Qa4#
      • 1...bxc5!
    • 1.Qc2?
      • threat
        • 2.Bc4#
      • 1...Ka6
        • 2.Qa4#
      • 1...e6!
    • 1.Qb3?
      • threat
        • 2.Bc4#
      • 1...Ka6
        • 2.Qa4#
      • 1...e6!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc7#
      • 1...Kc4
        • 2.Qe2#
      • 1...Ka6
        • 2.Qa4#
      • 1...Kxc6
        • 2.Be8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAR2(A)
    • B(d);SBLOCK::P(C)
  • Tries
    • Try
      • B(I);
      • Threat
        • B(I)
      • Vars
        • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAB1(A)
        • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAR2(A)
        • K(a);N_SPINP(b),OGATEB,S_FLIGHT,XP(G)::QAB1(A)
      • Refutation
        • P(e);
    • Try
      • R(E);CHECK,XP(b)
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR2(A)
      • Refutation
        • P(c);XR(E)
    • Try
      • Q(A);
      • Threat
        • B(I)
      • Vars
        • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAR2(A)
      • Refutation
        • P(e);
    • Try
      • Q(A);
      • Threat
        • B(I)
      • Vars
        • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAR2(A)
      • Refutation
        • P(e);
  • Actual
    • S(J);
    • Threat
      • S(J)
    • Vars
      • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAB(A)
      • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAR2(A)
      • K(a);N_SPINP(b),OGATEB,S_FLIGHT,XP(G)::B(I)
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